Elevator for viscous liquids



Sept. 28 1926. 1,601,349

E. CORTES ELEVATOR, FOR VISGOUS LIQUIDS Filed March 9, 1925 2 Sheets-Sheet 1 art wanton Spt. 28 1926. 0 1,601,349

E. CORTES ELEVATOR FOR VISCOUS LIQUIDS Filed March 9. 1925 2 Sheets-Sheet 2 Patented Sept. 28, 1926.

UNETE' stares PATENT orrlce.

EMILIO courts, or Mexico CITY, MEXICO.

ELEVATOR FOR VISCO'US LIQUIDS.

Application filed March 9,1925. Serial No.

' tank; both endless belts are moved vertically or almost vertically against scrapers, one of which extends into a gutter, for collecting the liquid when it has'been raised to a higher level by adhering to the belts.

The endless belts aretrained over pairs of pulleys, one of each pair being adjustably mounted in a bearing, while theother is per- 'manentlyfmountedin} a bearing fastened to the tower or frame.

The higher the liquid is raised, the greater is the spilling or slopping from the submerging belt because some of the liquid always oozes down along the inside of the exterior belt; and the more it accumulates, the quicker it runs down and finally gives off lumps which are readily caught by the outside of the inner endless belt and carried to the gutter.

The object of the present invention is to extract thick liquid from low levels, for instance receptacles, tanks or dams in which the liquid has been emptied by gravity from tank cars, carrying it up to loading vats without the use of a pump nor the heating of the liquid,' because the viscosity and thickness of the liquid is here useful, while in the pumping action it is an obstacle.

In the accompanying drawings:

Fig. 1 is a side view of the improved elevator.

Fig. 2 an enlarged side view of the lower part of the elevator.

Fig. 3 a side view of the upper part of elevator.

Fig. 4c a front view of same, the gutter being omitted.

Fig. 5 a front view of the gutter with the upper exterior scraper.

On the bottom of tank 1 the tower or frame 2 is mounted. In the angle irons of 14,310, and in'canada September 1 5, 1924.

the tower are adjusted two ball bearing blocks 3 suspended from two threaded stretcher rods 4. In these bearings, is the lower pulley 5 journaled, andthe shaft of the upper pulley .6 is journaled in the bearings7 ofthegutter 8. A fly-wheel 9 is also attached to said shaft and on the other end an idler 10 and a transmission pulley 11L Anexterior endless belt 12 is trained over the lower pulley 5 submerged into the liquid, and over theupper pull ey 6. This, belt 12 may passat a very slight inclination in order that th e'thick liquid, which accumulates in lumps upon the'b elt, may-fall from the belt as it rises and drop upon the outside of they interior belt 13, where it will collect and be carried to the scrapers.

Theinterior belt 18 passes over the lower middle pulleyll, the shaft of which is journaled in the ball bearing blocks. 15 suspended from two threaded stretcher ro'ds'lti, and also over the upper middle pulley 17.

Movement is'transmitted from a motor 18 bya belt 19 to revolve the lower middle pulley 141 and then by a belt 20 up to the upper exterior pulley 6.

A belt shifter 21 with chains is also attached to the elevator.

The liquid on the inside of the exterior belt 12 is taken off by an upper inner scraper 22, and falls upon the'outside of the inner belt 13, and being brought over to the scraper 23, yieldingly held against the outside of the inner belt 13, it is discharged into the gutter or tray 2 1.

The liquid which remains on the outside of the exterior belt 12 passes. over the pulley 6 and is taken oil by the scraper 25, elastically held against the outside of said belt and likewise drops into the tray 24.

The elevating belts are moved at a rela tively low speed, though the inner belt 18 has a slightly greater speed than the exterior belt 12, in order to make up for the descent of the lumps of liquid dropping from belt The velocity at which both belts are moved will. depend on the altitude to which the liquid should be raised, and also upon the widths of the belts and the thickness of the liquid.

Having thus I claim is:

1. An elevator for viscous liquids, comprising an outer endless conveyor; an inner endless conveyor disposed wholly within the described my invention, what confines of the outer conveyor in position to catch upon its outer surface liquid falling from the inner surface of said outer conveyor; and slow-speed driving means for said conveyors acting to drive the inner conveyor at a slightly greater speed than the outer.

2. An elevator for viscous liquids, comprising an outer endless conveyor; an inner endless conveyor disposed Wholly Within the confines of the outer conveyor in position to catch upon its outer surface liquid falling from the inner surface of said outer conveyor; a scraper yieldingly pressed against the inner surface of the outer conveyor to remove liquid adhering thereto to be caught upon the outer surface of the inner conveyor; a separate scraper yieldingly pressed against the said outer surface of the inner conveyor to remove the liquid therefrom; a discharge element to receive the liquid removed from the inner conveyor; and driving means for said conveyors.

3. An elevator for viscous liquids, com prising an outer endless conveyor; an inner endless conveyor disposed Wholly Within the confines of the outer conveyor in position to catch upon its outer surface liquid falling from the inner surface of said outer conveyor; separate scrapers yieldingly pressed against the outer and inner surfaces of the outer conveyor to remove liquid adhering thereto; a scraper yieldingly pressed against the outer surface of the inner conveyor; and driving means for said conveyors.

4. The combination, With a tank to contain a viscous liquid, of an elevator for raising the liquid comprising an outer, substantially vertical, endless conveyor having its lower portion submerged in the liquid; an inner, substantially vertical, endless conveyor disposed Wholly Within the confines of the outer conveyor in position to catch liquid falling from the inner surface of the same but having its lower portion situated above the level of the liquid; and driving means for said conveyors.

5. An elevator for viscous liquids, comprising an outer endless conveyor; an inner endless conveyor disposed Wholly Within the confines of the outer conveyor in position to catch upon its outer surface liquid falling from the inner surface of said outer conveyor; a scraper yielding-1y pressed against the outer surface of the inner conveyor to remove the liquid adhering thereto; a separate scraper yieldingly pressed against the outer surface of the outer conveyor to remove liq uid therefrom; a discharge element to receive the liquid thus removed from both conveyors; and driving means for said conveyors. I

In testimony whereof I have afiixed my signature.

EMILIO CORTES 

